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Siemens 3RW5214-3TC15 — Soft Starters

Siemens 3RW5214-3TC15 Soft Starter, 18 A, Trip Class 10E/20E

MPN3RW5214-3TC15
Active

Siemens SIRIUS 3RW52 soft starter, 3RW5214-3TC15, 200-600 VAC, 18 A rated motor current, Trip Class 10A/10E/20E, screw fixing, 275 x 170 x 152 mm.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RW5214-3TC15 — Identification
ParameterValue
Product designationSoft starter
Product brand nameSIRIUS
3RW5214-3TC15 — Power & Motor Rating
ParameterValue
Rated motor power at 400 V (40 °C)7.5 kW
Rated motor power at 230 V (40 °C)4 kW
Rated operational current at 40 °C31.5 A
Rated operational current at 50 °C28 A
Rated operational current at 60 °C23.9 A
Rated insulation voltage600 V
Minimum settable current (% of Ie)15 %; Relative to smallest settable Ie
Power loss during startup (50 °C)241 W
3RW5214-3TC15 — Control & Connection
ParameterValue
Control supply voltage typeAC
Main circuit terminal typescrew-type terminals
Control circuit wire range, solid2x (0.25 ... 1.5 mm²)
Control circuit wire range, finely stranded (with ferrule)2x (0.25 ... 1.5 mm²)
Analog outputNo
Auxiliary contact rated current, AC-15 at 250 V3 A
Auxiliary contact rating (UL)R300-B300
Control supply voltage tolerance, AC 50 Hz (max.)10 %
Control supply voltage tolerance, AC 50 Hz (min.)-15 %
Control supply voltage tolerance, AC 60 Hz (max.)10 %
Control supply voltage tolerance, AC 60 Hz (min.)-15 %
Control supply frequency tolerance (max.)10 %
Control supply frequency tolerance (min.)-10 %
Operating frequency tolerance (max.)10 %
Operating frequency tolerance (min.)-10 %
Operating voltage tolerance, inside-delta (max.)10 %
Operating voltage tolerance, inside-delta (min.)-15 %
3RW5214-3TC15 — Protection & Features
ParameterValue
Motor overload protectionYes; Full motor protection (thermistor motor protection and electronic motor overload protection)
Thermistor motor protectionYes; Type A PTC or Klixon / Thermoclick
Adjustable current limitationYes
Inside-delta connectionYes
Intrinsic device protectionYes
Pollution degree3, acc. to IEC 60947-4-2
3RW5214-3TC15 — Mechanical
ParameterValue
Height275 mm
Width170 mm
Depth152 mm
Weight2.1 kg
Mounting position+/- 10° rotation possible and can be tilted forward or backward on vertical mounting surface
Fastening methodscrew fixing
Mounting clearance, top100 mm
Mounting clearance, bottom75 mm
Mounting clearance, side5 mm
Mounting clearance, front10 mm
3RW5214-3TC15 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C; Please observe derating at temperatures of 40 °C or above
Storage / transport temperature range-40 ... +80 °C
Max. installation altitude5 000 m; Derating as of 1000 m, see catalog
Ambient class during operation (IEC 60721)3K6 (no ice formation, only occasional condensation), 3C3 (no salt mist), 3S2 (sand must not get into the devices), 3M6
Ambient class during transport (IEC 60721)2K2, 2C1, 2S1, 2M2 (max. fall height 0.3 m)
3RW5214-3TC15 — Specifications
ParameterValue
Trip ClassCLASS 10A (default) / 10E / 20E; acc. to IEC 60947-4-2
Number Of Controlled Phases3
Utilization category according to IEC 60947-4-2AC 53a
Product Feature Integrated Bypass Contact SystemYes
Start-Up Ramp Time Of Soft Starter0 ... 20 s
3RW5214-3TC15 — Electrical
ParameterValue
Current Limiting Value [%] Adjustable130 ... 700 %
Starting Voltage [%]30 ... 100 %
Stopping Voltage [%]50 %; non-adjustable

Product details

Trip Class and Motor Protection — What CLASS 10A / 10E / 20E Means for Your Line

The 3RW5214-3TC15 carries Trip Class 10A (default), 10E, and 20E per IEC 60947-4-2. CLASS 10A limits the start time to 10 seconds at locked-rotor current — standard for most pump, fan, and conveyor starts where the motor reaches speed quickly. CLASS 20E extends that window to 20 seconds, useful for high-inertia loads like centrifuges or crushers that take longer to accelerate. Minimum settable motor current is 7.5 A, with a minimum load of 15% of that setting.

Mounting and Panel Integration — 275 x 170 x 152 mm, Screw Fixing

Dimensions are 275 mm height, 170 mm width, 152 mm depth. Fastening is screw fixing to a vertical mounting surface, with +/- 10° rotation or tilt possible. Clearance requirements: 100 mm upwards, 75 mm downwards, 10 mm forwards, 5 mm at the sides, 0 mm backwards. Plan for those gaps in your enclosure layout — especially the 100 mm above for cable entry and heat dissipation. Terminal capacity accepts 2x (1.0 to 2.5 mm²) and 2x (2.5 to 10 mm²) solid conductors.

Lifecycle and Sourcing — Active Production, Sourced to Order

Approvals include CE, UL, and CSA — accepted across European and North American installations. Shock resistance rated at 15 g / 11 ms, with potential contact lifting above 12 g / 11 ms.

Frequently asked questions

What communication protocols does the 3RW5214-3TC15 support?

It supports PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET natively. PROFIenergy is available when used with the PROFINET standard communication module.

Where can I buy the Siemens 3RW5214-3TC15 soft starter?

This part is sourced to order; availability and pricing are confirmed at quote time.

MPN
3RW5214-3TC15